DS18 MRX1 Marine Head Unit Owner’s Manual

MR X1
MARINE & POWERSPORTS HEADUNIT

Owner’s Manual

OPERATION:

Turn on/off the unit:
Press on/off button to turn on the unit. When the unit is on. Press and hold it for 2 seconds to turn off the unit.

Sound and setting adjustment:
Shortly press the VOL knob for the audio menu: BAS->TRE->BAL->FAD->EQ->LOUD
Press and hold VOL knob for 2 seconds for the setting menu: SUB-V(20-0) -> SW(80HZ/120HZ/160HZ)-> CLK HH -> CLK MM -> CT(indeplsync) ->CLOCK(12/24)-> BEEP(on/off)->P_VOL(17)->AREA(USA/EUR)->DX/LOC->ST/MONO

In each item rotate the VOL knob to set them.

EQ: To select the preset EQ as below: FLAT->POP->ROCK->CLAS->EQ OFF.
LOUD (on/off): Turn on/off the loudness function.
SUB-V (20-0): Subwoofer volume adjustment.
SW (160Hz/120Hz/80Hz): Subwoofer Low Pass Frequency selection.
CLK HH/CLK MM: To adjust the hours and minutes of the clock.

CT (INDEP/SYNC):
CT INDEP: The clock works independently.
CT SYNC: The clock will be synchronized to the received RDS station’s time.
Note: When the time was set by manual. The CT will back to INDEP mode automatically.
CLOCK 24112: Setting the time to 24H or 12H format.
BEEP (on/off): Turn on/off the beep sound.
P-VOL (Preset VOL): Setting the power-on volume. If the volume at shutdown is small then the P-VOL value. Next time turn on the unit, the volume will be maintained at shutdown volume. If the volume at shutdown is greater than the P-VOL value. Next time turn on the unit the volume will be restored to the P-VOL value.
AREA (USAIEUR): Choose America or Europe region frequency.

DX/LOC (Distance/Local):
LOC: Receive the strong signal station only in seek station.
DX: Receive strong and weak signal stations in seeking the station.

STEREO/MONO:
STEREO: Receive FM stereo signal.
MONO: Change FM stereo to monochrome. It can reduce the noise when the signal is weak.

Display the clock or information
Shortly press the CLK button to show the clock or information.

Reset the unit

Press and hold button for 5 seconds to reset the unit.
Note: When the RESET function is activated, the device will go back to factory reset. MUTE on/off operation

In RADIO/AUX source press the button for the MUTE on/off function. In the USB/BT source press the button for the Pause/Play function.

Radio Operation

Receive a radio station
Press the SRC button to select RADIO mode. Then press the BAND button to select a band. Shortly press the button to receive the desired radio station. Press and hold the button for manual tuning the frequency.

Manually store station
Receiving the desired station. Press and hold the PRESETS button for 2 seconds. It shows “SAVE P1”. Rotating VOL knob to select P1-6 then press VOL button. The station will be saved.

Listening to the memory station
Shortly press the PRESETS button then rotate the VOL knob to select the presets 1-6 of the current band.

Auto store station
Press and hold the BAND button to auto store stations to numeric buttons 1-6 of band 1-3.

USB Operation
When a USB drive is inserted into the unit, the unit will play the MP3/WMA file automatically. If a USB drive is already inserted in the unit; keep pressing the SRC button shortly until the USB mode display appears.

Select file
Press the button to skip to the next/previous file. Hold button to fast forward or fast reverse.

Play/Pause
Press the button to pause/play the playing.

DIR+/DIR- function
Shortly press PRESETS button 1 time. It shows DIR-SCH. Rotating VOL knob to select another directory to play.

Search song
Shortly press PRESETS button 2 times. It shows NUM-SCH. Rotate the VOL knob to enter numbers. Press the VOL knob to play.

RPT (ALL/ONE/FOLD)
MP3/WMA playing, Press and hold PRESETS button for 2 seconds, it shows “RPT ALL”. Rotate VOL knob to select RPT ALL/RPT ONE/RPT FOLD.

RDM (ON/OFF)
MP3/WMA playing, Press and hold PRESETS button for 2 seconds, then shortly press it again. It shows “RDM OFF”. Rotate VOL knob to select RDM on/off.

Back to play the l’st song
MP3/WMA playing, Press and hold BAND button. It will play the first song on the USB.

AUX IN operation
Connect the audio signal to the R/L IN connector behind the unit. Then press the SRC button to switch to AUX mode.

Bluetooth Operation

Pairing
On a mobile phone, search for Bluetooth devices. “DS18-MRX1” should appear in the list, select “DS18-MRX1” and then input the password “0000” if asked. When pairing is successful, the BT symbol will appear on the LCD screen.

Bluetooth Audio

Press the SRC button to switch to BT mode. It will play automatically play a song from your mobile device. Press the key to pause/play the song. Press the button to select the next/previous song.

Disconnect the Bluetooth
In AUX/BT source. Press and hold the DISP button for 2 seconds to disconnect/re-connect the Bluetooth.

KEY FUNCTION

1. POWER/SRC BUTTON
2. LCD DISPLAY
3. PRESETS BUTTON
4. SEEK UP BUTTON
5. VOL BUTTON| 6. BAND BUTTON
7. DISP BUTTON
8. SEEK DOWN BUTTON
9. PLAY/PAUSE BUTTON
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MEASUREMENTS

WIRING CONNECTION

1. This player can only be used by the 12V DC cathode grounding the electrical system
2. Do not connect the terminals of the battery until the player has a good wiring connection
3. Please make sure to connect the yellow wire to the positive of the battery (+).
4. If you change the fuse; please make sure it has the same specifications
5. It is recommended to use this MRX1 head unit with a good quality speaker of 2-4 ohm for best results

INSTALLATION

Once a suitable location has been determined, drill the hole and secure the stereo using the metal mounting bracket. If the bracket needs to be shortened, remove the appropriate number of breakaway segments using a pair of pliers

1. This player should be installed by a professional technician.
2. Please read the instructions and operation of equipment carefully before installing.
3. Make sure to connect first the other wires before the power connection.
4. To avoid a short circuit; Please make sure all the exposed wires are insulated.
5. Please secure all the wires after installation.
6. Please make a connection to the head unit accordingly to this instruction manual. A wrong connection may cause severe damage.
7. This player is only for 12V DC electric systems and please make sure your boat belongs to this kind of cathode grounding electrical system.
8. Please connect the wires rightly. A wrong connection will cause malfunction or damage the electrical system.

FEATURES

TROUBLESHOOTING

GENERAL

Power Supply Requirements: DC 12 Volts, Negative Ground
Chassis Dimensions Tone Controls: 115(W) x 115 (D) x 74(H)
– Bass (at 100 Hz): ±10 dB
– Treble (at 10 kHz): ±10 dB
Maximum Output Power: 4×40 watts
RMS continuous power: 4x15W@4ohm 4×20 W@ 2 ohm
Current Drain: 10 Ampere (max.)

RADIO
Frequency Coverage
IF
Sensitivity
Stereo Separation| FM
USA: 87.5 to 107.9 MHz
EUR: 87.5 to 108 MHz
10.7 MHz
4V(SIN=30dB)

25dB| AM
530 to 1710 kHz
522 to 1620 kHz
450 KHz
36dBuV(S/N=20dB)
/
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Before going through the checklist, check the wiring connection. If any of the problems persist after the checklist has been made, consult your nearest service dealer.

to the car accessory circuits, but the engine is not moving, switch the ignition key to “ACC”
| The fuse is blown| Replace the fuse
No Sound| Volume is in minimum| Adjust volume to the desired level
| The wiring is not properly connected| Check wiring connection
The operation keys do not work| The built-in microcomputer is not operating properly due to noise| Press the reset button
The radio does not work. The Radio Station automatic selection does not work.| The antenna cable is not connected| Insert the antenna cable Firmly
| The signal is to weal| Select station manually

FCC Requirement

changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

• this device may not cause harmful interference, and
• this device must accept any interference received, including interference that may cause undesired operation.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
• Consult the dealer or an experienced radio/TV technician for help.

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